<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <title>LeetCode Ultimate</title>
    <style>
        body {
            margin: 0;
            padding: 12px;
        }
        button {
            height: 32px;
            white-space: nowrap;
            border: none;
            outline: none;
            color: white;
            cursor: pointer;
            border-radius: 6px;
            background-color: rgba(0, 0, 0, 0.7);
            transition: background-color .15s;
        }

        button:hover {
            background-color: rgba(0, 0, 0, 1);
        }
    </style>
</head>
<body>
<button id="connection" type="button">连接 LeetCode Ultimate</button>
<script src="./popup.js"></script>
</body>
</html>